<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>Hello, WebGL!</title>
<style>
canvas { border: 1px solid black; }
</style>
</head>
<body>
<canvas id="glCanvas" width="640" height="480"></canvas>
<script src="webgl-demo.js"></script>
</body>
</html>